Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 9 August 2022

‹ 08.08.2022 2022 10.08.2022 ›

Photosphere sunspot drawing and RDS evaluation

09.08.2022 photosphere drawing

High-resolution scan (3229 px)

Time
08:20 UT
Observer
H.ÇAKMAK-T.Y.
g
5
f
15
R
65
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 2Group 1 · AX_ – 2 Group 2 · HA_ – 1Group 2 · HA_ – 1 Group 3 · HS_ – 1Group 3 · HS_ – 1 Group 4 · BXI – 10Group 4 · BXI – 10 Group 5 · HS_ – 1Group 5 · HS_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=9.08.2022
Saat=08:20
Gözlemci=H.ÇAKMAK-T.Y.
KontrolEden=Özgecan ÖNALTAŞ
Durumaçısı=13.96
Enlemaçısı=6.32
Boylamaçısı=113.25
Boylamfark=2
GKalite=3
GDurum=G.T , B.A , H.S
Kuzeyaçısı=-0.4
Sırano=19516
AyRasatNo=9
RasatÖnceki=08.08.2022
RasatSonraki=10.08.2022

[Leke Grupları]
Grupsayısı=5:2:3
LekeSayısı=15:3:12
RölatifSayı=65:23:42
01=AX_ 02 +20.940 -35.686 077.564 +0.000 0000 0 +21.347 -34.901 +20.533 -36.472 +20.940 -35.401 +20.940 -35.972
02=HA_ 01 +16.400 -53.190 060.600 +0.000 0000 0 +16.980 -51.773 +15.290 -54.607 +16.400 -52.273 +16.400 -54.107
03=HS_ 01 -17.650 +11.567 124.817 +0.000 0000 0 -16.790 +12.445 -18.500 +10.689 -17.650 +11.945 -17.650 +11.189
04=BXI 10 -16.142 -02.519 110.731 15.293 0000 0 -14.535 -00.501 -17.748 -04.536 -16.140 -01.234 -16.835 -04.241
05=HS_ 01 -15.650 -24.393 088.857 +0.000 0000 0 -14.920 -23.425 -16.380 -25.362 -15.650 -23.924 -15.650 -24.861
20220809.gzd

Chromosphere (H-α) FITS frames

H-α

The images are made automatically with a fixed, gentle rule: uneven illumination and most of the limb darkening are removed, and the brightness is shown on a linear scale (no sharpening); prominences get their own scale outside the limb. Frames are ordered by sharpness (seeing); frames without the Sun (darks, bias) come last. Method →

2022/20220809_hc · HC · 6 frames · 128.6 MB · 08:13:35–08:50:50 UT

08:20:17 UT · 30 ms 08:32:35 UT · 25 ms 08:50:50 UT · 20 ms 08:44:21 UT · 60 ms · over-exposed 08:13:35 UT · 60 ms · over-exposed 08:35:56 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.